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How To Choose the Best Furnace Filter for Your HVAC System

by Barbara 4. November 2015 04:56

Question: How do I choose a furnace filter for my HVAC system?

Answer: Always check with your HVAC technician prior to replacing your furnace filter. He or she is knowledgable about the air duct capacity and motor capacity of your system. Another option is to match the furnace filter in your system with another that is the same MERV rating or  MPR (Microparticle Performance Rating)‎. Explain that the 1 inch filter has an internal frame, that no air can go around it. Similarly the 4 inch thick unit is made to fit a 4 or 5 inch filter slot.

The buyer of a furnace filter must assume responsibility for his or her choice of furnace filters. No on-line company nor box store knows the age, the air duct capacity, the motor capacity, etc. of your HVAC system. Only your HVAC technician is qualified to determine the density of a filter that will work in your furnace and cause no problems.

Safe Home internal frame filters have two layers of media. The white side must be inserted into the filter panel so that the air flow goes through that part first. With the internal metal frame, this filter fits very tightly into the opening. No air can go around it. Your HVAC technician needs to know that this is an internal frame filter with no air escaping around it.

The Safe Home Duo 4 filters are also made to fit very tightly in the filter holder. This unit is also marked so it must be installed so that the air flow goes through the filter in the correct direction. Again it is important that your HVAC technician be aware of this tight fit. These units replace 4 or 5 inch thick filters. Always insert so that airflow goes first through the white side.

Thanks for your question.

Sincerely, Barbara

 

All Furnace Air Goes Thru Safe Home Brand Disposable Furnace Filter With Self-Sealing Frame

by Barbara 14. December 2011 09:02

Question about why the Safe Home Duo 16 x 25 x 1 furnace filter is a better furnace filter than a washable metal one or a fiberglass disposable one.

Q: "Please explain why this furnace filter is superior to a washable metal furnace filter or a disposable fiberglass disposable furnace filter. Thanks. Sam

Answer: Differences are several:

  • All air must pass through the Safe Home Duo furnace filter because the frame is internal. The twin media covering the frame are self-sealing. To install, push the Safe Home filter into the one inch slot. The soft filter media seals against all 4 edges.
  • Each Safe Home Duo filter has two types of media: one layer is for dust, dirt and pollen; the second layer also contains an odor and formaldehyde absorbing layer.  Judged to be 95% effective at filtering out dust, dirt, allergens, etc.
  • Compare 95% effectiveness of the Duo with either an all metal filter or one made of fiberglass. Fiberglass tend to clog quickly with large dirt particles, restricting air flow while letting small particles go through. These smaller particles can include mold and bacteria. Fiberglass are often rated at 2% effective while non-electrostatic are rated at 4% effective or less.
  • Neither the metal washable filter nor the disposable fiberglass filter contains activated carbon and potassium permanganate, the filter media for odors and chemicals such as formaldehyde and paint fumes.
  • The Safe Home Duo is a MERV 8 rated filter made in the USA: inexpensive metal and fiberglass filters are often MERV 2 or 3.
  • No mess. No time spent washing filters. Just put the dirty Duo filter into the garbage and replace with a clean one every 3 to 4 months or more often if yours is an exceptionally dirty environment.

Installation Instructions: The white side of the filter should face incoming air. In most systems, the white side should face away from the air handler or furnace equipment. Air should enter the white side, which traps allergens, and exit through the dark side, which traps gases and odors.

Note: Check with your HVAC technician to verify that your system is able enough to handle the density of a MERV 8 filter before purchasing this or any other MERV 8 filter. Install this MERV 8 with Air Flow First Going through the White Media. Made in USA.

Thank you for your question. We sell the Safe Home Duo in many sizes. We also sell the Safe Home Duo Air Purify Furnace Filter 20x20x4 In. and other sizes in the 4 inch furnace filters. These thicker furnace filters also have self-sealing edges around a 4 inch furnace filter core to filter out allergens with the Formaldesorb carbon and potassium permanganate.

Thank you for your question.

Sincerely, Barbara